6. It is the central value or average of its corresponding probability mass function. a. Mean b. Standard Deviation c. Probability d. Variance 7. “The number of friend request on my Facebook account” is an example of _______________. a. Continuous Random Variable b. Discrete Random Variable 8. This symbol is used to denotes Mean. a. μ b. σ c. σ² d. P(x)

Equipment Breakdowns. A factory manager collected data on the number of equipment breakdowns per day. From those data, she derived the probability distribution shown in the following table, where W denotes the number of breakdowns on a given day. w 0 1 2 P(W = w) 0.80 0.15 0.05 a. Determine µW and σW . Round your answer for the standard deviation to three decimal places.b. On average, how many breakdowns occur per day?c. About how many breakdowns are expected during a 1-year period, assuming 250 work days per year?

Quiz: Self-Check 3.2 This Question: 1 pt 5 of 8 (4 cor Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 3 4 Probability 0.662 0.212 0.083 0,022 0.013 0.008 (a) Find the mean, variance, and standard deviation of the probability distribution. Find the mean of the probability distribution. 卫三 (Round to one decimal place as needed.) Find the variance of the probability distribution. (Round to one decimal place as needed.) Find the standard deviation of the probability distribution. | (Round to one decimal place as needed.) (b) Interpret the results in the context of the real-life situation. Click to selecCt your answer(S). Video Tuterial How to Find Probablitie T1-84. =earch

Groups of adults are randomly selected and arranged in groups of three. The random variable x is the number in the group who say that they would feel comfortable in a self-driving vehicle. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. OA. H= O B. The table does not show a probability distribution. X P(x) 0 0.368 0.435 0.171 0.026 adult(s) (Round to one decimal place as needed.) 1 Does the table show a probability distribution? Select all that apply. A. Yes, the table shows a probability distribution. B. No, not every probability is between 0 and 1 inclusive. C. No, the sum of all the probabilities is not equal to 1. D. No, the random variable x's number values are not associated with probabilities. E. No, the random variable x is categorical instead of numerical. Find the mean of the random variable x.…

What requirements are necessary for a normal probability distribution to be a standard normal probability distribution? Choose the correct answer below. ... OA. The mean and standard deviation have the values of µ = 0 and o=0. OB. The mean and standard deviation have the values of µ = 0 and o= 1. OC. The mean and standard deviation have the values of μ = 1 and o=1. O D. The mean and standard deviation have the values of μ = 1 and σ = 0.

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The table below shows the probability distribution of the random variable X. a. Find the mean of the random variable. b. Obtain the standard deviation o of the random variable. 1 P(X =x) 0.4 0.1 0.5 a. Find the mean of the random variable. (Round to two decimal places as needed.) b. Obtain the standard deviation o of the random variable. O = (Round to two decimal places as needed.) Enter your answer in each of the answer boxes. ? Le

Which statements regarding the mean and standard deviation are TRUE? I. As the number of measurements increases, approaches µ if there is no random error. II. The square of the standard deviation is the average deviation. III. The mean is the center of the Gaussian distribution. IV. The standard deviation measures the width of the Gaussian distribution. I and II ○ III and IV ○ II, III, and IV O I, III, and IV O I, II, and IV

11 LL Complete parts (a) and (b) below. The number of dogs per household in a small town 11 Probability 0. 0.632 1. 0.228 3. 0.027 4. 0.014 0.092 11 (a) Find the mean, variance, and standard deviation of the probability distribution. Find the mean of the probability distribution. 11 p=(Round to one decimal place as needed.) 11 Find the variance of the probability distribution. 11 o = (Round to one decimal place as needed.) Find the standard deviation of the probability distribution. 58°F Su 查 0 同回 F10 F8 F11 7. 8. 6.